MESON Chess Problem Database

Problem Display
PID: 129809 (5k1B/4pP1p/1n5r/2pN2Np/2Q4K/8/8/8 w - - 0 1)

Rosol, Karel

Svobodne Slovo, 1949

5k1B/4pP1p/1n5r/2pN2Np/2Q4K/8/8/8

#2

6 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...e6
      • 2.Qxc5#
  • Tries
    • 1.Sxb6?
      • threat
        • 2.Sd7#
      • 1...Rxb6
        • 2.Sxh7#
      • 1...e6
        • 2.Qxc5#
      • 1...Rd6
        • 2.Sxh7#
      • 1...e5!
  • Keys
    • 1.Sf6!
      • 1...Rxf6
        • 2.Sxh7#
      • 1...Sxc4
        • 2.Sd7#
      • 1...exf6
        • 2.Qxc5#
      • 1...e5
        • 2.Qxc5#
      • 1...e6
        • 2.Qxc5#
      • 1...Rg6
        • 2.Sgxh7#
        • 2.Sfxh7#
      • 1...Sa4
        • 2.Sd7#
      • 1...Sd5
        • 2.Sd7#
      • 1...Sd7
        • 2.Sxd7#
      • 1...Sa8
        • 2.Sd7#
      • 1...Sc8
        • 2.Sd7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
    • P(e);OGATEB::QAB(A),XP(a)
  • Tries
    • Try
      • S(C);XS(c)
      • Threat
        • S(C)
      • Vars
        • R(d);N_GUARD,XS(C)::S(D),XP(f)
        • P(e);OGATEB::QAB(A),XP(a)
        • R(d);N_GUARD::S(D),XP(f)
      • Refutation
        • P(e);
  • Actual
    • S(C);
    • Vars
      • R(d);N_GUARD,XS(C)::S(D),XP(f)
      • S(c);N_GUARD,XQ(A)::S(C)
      • P(e);OGATEB,XS(C)::QAB(A),XP(a)
      • P(e);OGATEB::QAB(A),XP(a)
      • S(c);N_GUARD::S(C)
      • S(c);N_GUARD::S(C),XS(c)
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Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).